Newbie question

[rondans]

Just started using the app on our Kindle Fire HD. It's a GREAT app (with exception of volume issues, which I've overcome with a volume booster). I'm having some issues with subtitles , which I could probably resolve on my own if I could find a manual of features and how to use them. It's probably hiding somewhere on the forum, but I can't find it. I've also looked on the BS website , also to no avail.

Thanks!

[Ectharp]

I'm running the app on a kindle fire hd, 3rd gen and have volume issues as well. Which booster app have you found that works? I've bought and tried several that have no impact on speaker volume at all...frustrated.